The Testament of Sherlock Holmes Hints

How can I make a strong enough sedative?

  • 1 of 7: Look on the shelves that are to the left of the grilled window to find a syringe and a bottle of barbiturate acid that you can take.
  • 2 of 7: Watson comments that barbiturate acid is often used as a tranquilizer, so go to inventory and drag-and-drop the syringe onto the acid bottle to fill it.
  • 3 of 7: That's not enough by itself, though. You'll need to find something to add to the acid in the syringe to make it more effective.
  • 4 of 7: Remember all those sleeping opium addicts out in the hallway? Perhaps a bit of opium would do the trick.
  • 5 of 7: Look on the floor to find two large bowls full of opium balls. Click on either bowl to take a spoonful of them.
  • 6 of 7: You'll then need to heat the opium balls until they form a liquid solution.
  • 7 of 7: After heating the spoonful of opium, combine the syringe with the spoon in inventory to create a "syringe with soporific" item.